heladera sharp manual de servicio
TRANSCRIPT
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SERVICE MANUALSJ-A20S/B21S/A24S/B25S/A28A/B27S/A31S/A34S-SL
No.S9902SJ22FTVTT
This document has been published to be used for after sales service only.The contents are subject to change without notice.
CONTENTS
Refrigerator-freezer MODELS SJ-A20S-SL
SJ-B21S-SLSJ-A24S-SLSJ-B25S-SLSJ-A28S-SLSJ-B27S-SLSJ-A31S-SLSJ-A34S-SL
DESTINATION T
Refer to "HFC-134a COOLING UNIT" Service Manual for handling this refrigerant.
Refrigerant; HFC-134a
SJ-A28S-SLSJ-B27S-SL
CHAPTER 1. SPECIFICATION
CHAPTER 2. DESIGNATION OF VARIOUS PARTS[1] EXTERNAL DESCRIPTION........................... 2-1[2] CONSTRUCTIONS................................ ........ 2-2
CHAPTER 3. DIMENTIONS[1] OUTER DIMENTIONS AND
CLEARANCE ......................................... ........ 3-1
[2] INNER DIMENTIONS ............................ ........ 3-4CHAPTER 4. LIST OF ELECTRICAL PARTS
CHAPTER 5. WIRING DIAGRAM[1] WIRING DIAGRAM ................................ ........ 5-1[2] ELECTRIC ACCESSORIES LAYOUT ... ........ 5-2
CHAPTER 6. FAILURE DIAGNOSIS[1] OUTLINE OF CONTROL ............................... 6-1
[3] RE-SETTING OF MICROCOMPUTER ATPOWER FAILURE.................................. ........ 6-2
[4] DIAGNOSIS METHOD OF FAILURE............6-2[5] CONVERSION TABLE .................................. 6-3[6] CIRCUIT DIAGRAM OF MAIN PWB .............6-4
CHAPTER 7. FUNCTIONS[1] ADJUSTABLE TEMPERATURE
CONTROL ..................................................... 7-1
CHAPTER 8. ASSEMBLI NG PROCEDURES OFMAIN PARTS AND CAUTIONS[1] F-LOUVER ASS'Y (SJ-A20S/B21S/A24S/ B25S/A28S/B27S) ..........................................8-1
[3] R CONTROL COV. ASS'Y.............................8-7[4] HOW TO REPLACE THE LAMP ...................8-9[5] DEFROST HEATER ...................................... 8-10
CHAPTER 9. COOLING UNIT[1] COOLING UNIT............................. ................9-1[2] LOCATION .................................................... 9-2
Parts Guide
[2] F-LOUVER ASS'Y (SJ-A31S/A34S)...............8-4
[1] SJ-A20S/B21S/A24S/B25S/A28S/B27S........ 2-1[2] SJ -A 31 S/ A3 4S .. ........................................ 2-2
[3] PRECAUTION FOR USING LEAD-FREE SOLDER........................................................5-3
[2] CHECK MODE OF DEFROST HEATER(Forced Defrosting) ........................................ 6-1
SJ-F230G
SJ-F230GSJ-F230G
Ag
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1 – 1
SJD34NSLG Service ManualCHAPTER 1. SPECIFICATION
RATING
PLUG TYPEPlug cord 2 pinPlug type -Destination mark T
COLORItems -SLOutside color SilverInside color White
SJ-A20SSJ-B21S
SJ-A24SSJ-B25S
SJ-A28SSJ-B27S
Outer dimensions Height 1253mm(49.3") 1389mm(54.7") 1491mm(58.7") Width 545mm(21.5") 545mm(21.5") 545mm(21.5")
Depth 620mm(24.4") 620mm(24.4") 620mm(24.4")184liter(6.5cu.ft) 212liter(7.5cu.ft) 227liter(8.0cu.ft)
Defrosting SystemStartFinish
Freezer Compartment F-shelf
Ice cube maker Ice storage boxDoor pocket 2
Refrigerator Compartment Fresh caseR shelf (plastic) 1 2 -R shelf ass'y (glass) - - 2V shelf (plastic) 1 1 -V shelf ass'y (glass) - - 1Vegetable caseEgg pocketSmall pocket -Door pocket B -
Bottle pocketDoor pocket
11
Deodorizing unit
Items
Type
No-frost freezer Interior lamp Evaporating pan
1
Rate storage volume (Rated volume)
Temperature control Automatic (Adjustable)Yes1
1
1
2-Door
Heater system Automatic Automatic
11
Twin ice cube maker 1
1
111 (Honeycomb type)
SJ-A20S/B21S/A24S/B25S/A28S/B27S
Stand Yes
SJ-A20SSJ-B21S
SJ-A24SSJ-B24S
SJ-A28SSJ-B27S
Rated voltage (V~) Rated frequency (Hz) Climate class Rated power input (W)
Rated current (A) Current input (A) Defrosting input (A) Defrosting power (W)
HFC-134a(75 g) HFC-134a(75 g) HFC-134a(95 g)
Net Weight (kg) 39 41 45
0.850.58
50T
220
Insulation blowing gas [Flammable]
Items
Refrigerant (Charging quantity) [Non-flammable]Cyclo pentane (HC)
128
0.58
100
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1 – 2
SJD34NSLG Service Manual
RATING
PLUG TYPEPlug cord 2 pinPlug type -Destination mark T
COLORItems -SLOutside color SilverInside color White
SJ-A31S SJ-A34S
Outer dimensions Height 1580mm(62.2") 1700mm(66.9") Width 600mm(23.6") 600mm(23.6")
Depth 631mm(24.8") 631mm(24.8")292liter(10.3cu.ft) 313liter(11.1cu.ft)
Defrosting SystemStartFinish
Freezer Compartment F-shelf Ice cube maker Ice storage boxDoor pocket
Refrigerator Compartment Fresh caseR shelf ass'y (glass) 2 3V shelf ass'y (glass)Vegetable caseEgg pocketEgg traySmall pocket 1 2Door pocket BBottle pocketDoor pocket
1 (Honeycomb type)
1
1
11
2-Door
Automatic
2
Temperature control Automatic
1Twin ice cube maker 1
Deodorizing unit
Items Type
No-frost freezer Interior lamp Evaporating pan
Rated storage volume (Rated volume)
1
Heater system
11
Automatic (Adjustable)Yes11
1
SJ-A31S/A34S
SJ-A31S SJ-A34S Rated voltage (V~) Rated frequency (Hz) Climate class Rated power input (W) Rated current (A) Current input (A) Defrosting current (A) Defrosting power (W)
Cyclo pentane (HC) Net Weight (kg) 52 54
0.950.58
Insulation blowing gas [Flammable]
Items
Refrigerant (Charging quantity) [Non-flammable] HFC-134a(100 g)
22050T1090.58
128
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2 – 1
SJ26NSL Service ManualCHAPTER 2. DESIGNATION OFVARIOUS PARTS
[1] EXTERNAL DESCRIPTIONThe names in parenthesis "[ ]" are the denominations used in the REPLACEMENT PARTS LIST.
1. Freezer shelf [F-shelf]2. Freezer temp.control knob3. Ice cube maker 4. Ice cube box [Ice storage box]
5. Fresh room6. Refrigerator temp.control knob7. Light [Lamp]
8. Refrigerator shelf [ R-shelf (plastic) : SJ-A20S/B21S; 1 pc. SJ-A24S/B25S; 2 pcs. R-shelf ass’y (glass) :SJ-A28S/B27S/A31S; 2 pcs, SJ-A34S; 3 pcs.]
9. Vegetable shelf
10. Vegetable crisper [Vegetable case]
11. Adjustable foot [Adjustable leg]
12. Magnetic door seal [Door packing]
13. Door pocket
16. Light switch15. Egg pocket
(SJ-A20S/B21S/A24S/B25S; 2 pockets,SJ-A28S/B27S/A31S/A34S; 3 pockets)
17. Small pocket (right) [Small pocket]
18. Small pocket (left) [Door pocket B]
19. Bottle pocket
(SJ-A24S/B25S/A28S/B27S/A31S; 1 pocket, SJ-A34S; 2 pockets)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
13
12
14. Egg holder [Egg tray]
(SJ-A24S/B25S/A28S/B27S/A31S/A34S)
(Only SJ-A31S/A34S)
[ R-shelf (plastic) : SJ-A20S/B21S/A24S/B25S, R-shelf (glass) : SJ-A28S/B27S/A31S/A34S ]
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2 – 2
[2] CONSTRUCTIONS
Fan motor
Def-thermistor
F-temp. control knob
R-temp. control knob
Evaporator
Defrost heater
Deodorizing unit
R-thermistor PWB L ass'y
Running capacitor
Lamp
Compressor Starting relayProtector
Evaporating pan
Mark: Cold air flow
Fuse ass'y
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SJD26LVSLCHAPTER 3. DIMENTIONS
[1] OUTER DIMENTIONS AND CLEARANCE
1. SJ-A20S/B21S
2. SJ-A24S/B25S
(Unit:mm)
9
3 4
4
610628.5
1 0 8 5
545
1 1 4 5
365
970
545
4 4 3
. 5
7 5 7
. 5
1 2 5 3
(Unit:mm)
9
3 4
4
610628.5
1 0 8 5
545
1 1 4 5
365
970
545
4 4 3
. 5
8 9 3
. 5
1 3 8 9
6060
6060
60
60
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3 – 2
3. SJ-A28S/B27S
(Unit:mm)
9
3 4
4
610628.5
1 0 8 5
545
1 1 4 5
365
970
545
5 1 5
. 5
9 2 3
. 5
1 4 9 1
60
60 60
4. SJ-A31S
600 600
5 4 1
. 5
9 8 6
. 5
3 4
4
1065
1 1 6 1
1 2 2 1
405
631
1 5 8 0
9
649.5
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5. SJ-A34S
600
5 4 1
. 5
1 1 0 6
. 5
3 4
4
631
1 1 6 1
600
1 2 2 1
405
1065
1 7 0 0
9
649.5
[2] INNER DIMENTIONS
1. SJ-A20S/B21S
380
390
2 5 3
3 2 1
4 5
1 4 6
1 4 9
3 0 0
6 7
1 0 7
6 7
196
5 5
4 3
391
3 8
3 3
138
417
417
363
2 0 8
371
366
366
137
2 0 8
2 0 4
1 5 4
103
250
1 4 3 1
0 7
66
120
80
211
292
340
(Unit:mm)
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SJ26NSLCHAPTER 4. LIST OF ELECTRICAL PARTS
ITEMS TYPE NAME RATING SPECIFICATIONSR Thermistor Defrost Thermistor
―
―DC 5VDC 5V
R0 = 6.4 k Ω , B(0) = 3811R0 = 6.4 k Ω , B(0) = 3811
Thermo. fuse SF70E 250V 10A Working temp. : 70 °CDefrost heater ― 220 - 240V 378 Ω 140W at 230VFan motor (A20S/B21S/A24S/B25S/
A28S/B27S)
(A31S/A34S)
3R00121
3R00101B
AC 200-240V, 50Hz
AC 220-240V,50Hz AC 220-230V,60Hz
Door switch SDKNA20101 250V 0.25A125V 0.5 A
3 Terminals push-botton type
R Lamp ― 240V 15W #187 Straight Terminal, Pitch 6Compressor (A20S/B21S/A24S/B25S)
(A28S/B27S)
(A31S/A34S)
FL0845-ST
FL1152-SZ
FL1257-SW
220-240V/50Hz
220-240V/50Hz
Cooling capacity : 106 W (50Hz)Main coil : 23.8 Ω
Aux. coil : 29.7 Ω
(at 75 °C)
Cooling capacity : 136 W (50Hz)Main coil : 23.8 Ω
Aux. coil : 42.4 Ω
(at 75 °C)
Cooling capacity : 170 W (50Hz)Main coil : 18.4 Ω
Aux. coil : 31.5 Ω
(at 75 °C)
Starting Relay PEN0SBT 50/60 Hz 22 ± 4.4 Ω (at 25 °C)Overload Relay (Protector)
(A20S/B21S/A24S/B25S)
(A28S/B27S)
5TM158RFBYY-53
5TM149NFBYY-53
5TM189RFBYY-53
―
―
―
Open/ Close : 120 ± 0.5 / 61 ± 9.0°C
Open/ Close : 120 ± 0.5 / 61 ± 9.0°C
Open/ Close : 130 ± 0.5 / 61 ± 9.0°CRunning capacitor (A20S/B21S/A24S/B25S/
A28S/B27S)(A31S/A34S)
RC-EZA237CBZZ
RC-EZA249CBZZ
400V 3
400V 4
Main PWB FPWB-A667CBKZ 220-240V ―
220-240V/50Hz
―
―
―
―
F
F
C o m m o n
A u x . c o il M a in c o il
(A31S/A34S)
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5 – 1
SJD26LVSLCHAPTER 5. WIRING DIAGRAM
[1] WIRING DIAGRAMBe sure to replace the electrical parts with specified ones for maintaining the safety and performance of the set.
(BL)
STARTING RELAYCOMPRESSOR
RUNNING CAPACITOR
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[2] ELECTRIC ACCESSORIES LAYOUT
F-LOUVER ASS’Y
FAN MOTOR FMLEAD EV COVER
FUSE
DEF-THERMISTOR
DEF-HEATER
R-CBOX-K
PWB
LAMP
R-THERMISTOR
DOOR SWITCH
TERMINAL COVER
COMPRESSOR
PROTECTOR
STARTING RELAY
CABINET
HARNESS FL ASS’Y
RELAY WIRE ASS’Y
(BOTTOM ANGLE)
RUN CAP.
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5 - 3
1. Employing lead-free solder The PWB of this model employs lead-free solder. This is indicated by the "LF" symbol printed on the PWB and in the service manual. The suffix letter indicates the alloy type of the solder.
Example:
2. Using lead-free wire solder When repairing a PWB with the "LF" symbol, only lead-free solder should be used. (Using normal tin/lead alloy solder may result in cold soldered
joints and damage to printed patterns.)
As the melting point of lead-free solder is approximately 40°C higher than tin/lead alloy solder, it is recommend that a dedicated bit is used, and thatthe iron temperature is adjusted accordingly.
3. Soldering As the melting point of lead-free solder (Sn-Ag-Cu) i s higher and has poorer wettability, (flow), to pr event damage to the land of the PWB, extremecare should be taken not to leave the bit in contact with the PWB for an extended period of time. Remove the bit as soon as a good flow is achieved.The high content of tin in lead free solder will cause premature corrosion of the bit. To reduce wear on the bit, reduce the temperature or turn off theiron when it is not required.
Leaving different types of solder on the bit will cause conta mination of the different alloys, which will alter their characteristics, making good solderingmore difficult. It will be necessary to clean and replace bits more often when using lead-free solder. To reduce bit wear, care should be taken to cleanthe bit thoroughly after each use.
Indicates lead-free solder of tin, silver and copper
[ ] PRECAUTIONS FOR USING LEAD-FREE SOLDER
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SJ431NSL Service ManualCHAPTER 6. FAILURE DIAGNOSIS
[1] OUTLINE OF CONTROL
1. ON/OFF Control of Compressor When the plug of refrigerator is connected, the compressor will start automatically and run for approximately 5 minutes. After then, ON/OFF of thecompressor will be controlled depend on the temperature detected by the R-thermistor. During 6 minutes after the compressor stops, it will not startregardless of the detected temperature by R-thermistor..
2. DefrostingMicrocomputer calculates the appropriate timing of defrosting and defrosting is made automatically. Therefore no manual operation by user isrequired. The cycle of defrosting varies depend on the usage condition of the refrigerator. (Maximum time 50 hours, minimum time 4 hours)
3. Thermistor
Thermistors are installed in 2 places; in the refrigerator compartment and close to theEvaporator. (R-thermistor and Def-thermistor)
It is not installed in the freezer compartment.
R-thermistor reads the temperature in the refrigerator compartment and controls ON/OFFof compressor.
Def-thermistor detects the temperature around the evaporator and shows the progress of defrosting.
[2] CHECK MODE OF DEFROST HEATER (Forced Defrosting)The operation of the defrost heater can be checked by starting it.
In case the failure of defrosting is suspected, this is an effective inspection method.
1. Starting Method
At the power OFF condition.
1) Keep the door of the refrigerator compartment open.
2) Set the Temp. Control Knob in the refrigerator compartment to the following position.220-240V models: Center
110-127V models: Max
3) Keep the door open and supply power source.
2. Normal Operation1) Approximately 3 seconds after power supply, the relay on the PWB will be turned ON and the defrost heater will be electrified for 5 seconds.
2) After 5 seconds, if the temperature of Def-thermistor reaches high enough (over 10°C) and judged as defrosting completion, the compressor runsfor 5 minutes and then returns to the normal control.
On the other hand, if the temperature of Def-thermistor is still low (under 10°C), the defrost heater will be electrified until the temperature of Def-thermistor reaches the specified temperature or higher.
After completion of electrification, the compressor runs for 5 minutes and then returns to the normal control.
* In the case that any abnormality in Door Switch, Volume, R-thermistor or Def-thermistor, or the Temp. Control Knob is not in the position corre-sponding to the value of the rating voltage settled to the PWB itself, this mode will not be entered nor the defrost heater is electrified.
Def-thermistor
Evaporator
Defrost heater
R-thermistor PWB
Compressor
(Center)
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[3] RE-SETTING OF MICROCOMPUTER AT POWER FAILURE• At the power failure for over 0.1 second, the control of the microcomputer will be reset.
When the power is re-supplied, the temperature of R-thermistor will be detected again and ON/OFF of the compressor will be decided.
• At the momentary power failure (less than 0.1 second), the protector of the compressor might work due to the high load to the compressor for re-starting.
• When resetting is made during the operation of the defrost heater, the normal cooling will be resumed.
[4] DIAGNOSIS METHOD OF FAILURECheck by the following procedure;
1. Disconnect power supply and check the following point.
• Is there any failure portion in inserting connectors?
2. Detach the PWB and check the appearance.
• Is there any burning or abnormal damage?
3. Check the conditions of the fuse and the varistor. (Fuse and varistor are located at the position in the figure.)
• Melting in the fuse cannot be checked visually (as the safer one than transparent glass tube is used). Be sure to detach the connector “CN1”before measuring the resistance between the both ends of the fuse by the tester.
• Next, measure the resistance value between the both leads of the varistor.
4. Check whether the temperature (resistance value) shown by R-thermistor is correct or not. (Refer to the table below.)
• Detach the connector “CN3” on the PWB and measure the resistance value between 1 and 2 pins.
5. Check whether the temperature (resistance value) shown by Def-thermistor is correct or not. (Refer to the table below.)
• Detach the connector “CN3” on the PWB and measure the resistance value between 3 and 4 pins.
Varistor→Normal (several hundreds Ω~several KΩ e gamaD)
Fuse↓
Melting
Flow of excessive current is considerable for some rea-sons.Check for any portion to cause short circuits especially on the primary circuit.
There is a possibility of excessive voltage applied from out-side with the factor such as thunder etc. When repeatedwith a factor other than thunder, there might be the appara-tus near by generating noises.
Conduction
Fuse and varistor are normal.Possibility to be caused by excessive current or voltagenear the power supply is low. Proceed to the next checkitem.
—
Fuse
Varistor
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[5] CONVERSION TABLEConversion Table between R-thermistor and Def-thermistor Temperature and Resistance Value
Temperature(°C)
Resistance Value(kΩ)
Temperature(°C)
Resistance Value(kΩ)
Temperature(°C)
Resistance Value(kΩ)
-25 26.1 -11 11.49 3 5.5-24 24.54 -10 10.88 4 5.23-23 23.08 -9 10.3 5 4.98
-22 21.72 -8 9.75 6 4.74-21 20.46 -7 9.24 7 4.52-20 19.27 -6 8.76 8 4.3-19 18.16 -5 8.3 9 4.1-18 17.13 -4 7.87 10 3.91-17 16.16 -3 7.47 11 3.73-16 15.25 -2 7.09 12 3.56-15 14.4 -1 6.74 13 3.4-14 13.6 0 6.4 14 3.24-13 12.85 1 6.08 15 3.1-12 12.15 2 5 .78
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[6] CIRCUIT DIAGRAM OF MAIN PWB
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SJD26LVSLCHAPTER 7. FUNCTIONS
[1] ADJUSTABLE TEMPERATURE CONTROL
1. Temperature control1) FREEZER COMPARTMENT
The FREEZER TEMP. CONTROL regulates the quantity of cold air to the freezer."MAX" setting directs more cold air to the freezer compartment. (making the freezer compartment colder)
"MIN" setting directs less cold air to the freezer compartment. (making the freezer compartment less colder)
2) REFRIGERATOR COMPARTMENTThe REFRIGERATOR TEMP. CONTROL controls the compressor running time of the refrigeration system.
"Coldest"(5) sett ing will result in colder temperature in the both (refrigerator and freezer) compartments.
"MIN"(1) control setting will result in warmer temperature in the both (refrigerator and freezer) compartment.
NOTE:
• For hot summer conditions (about over 35 °C ambient temperature), set your FREEZER TEMP. CONTROL to less colder than "MID"(towards "MIN"). This is because "MAX" setting may result in too little air flow to the refrigerator compartment, causing too warm tempera-ture in the refrigerator compartment. And set your refrigerator compartment freeze, you must set the REFRIGERATOR TEMP. CONTROLto less colder setting. (toward "MIN").
• In a cold kitchen (about under 10 °Cambient temperature), set your FREEZER TEMP. CONTROL to "MAX" to avoid too warm tempera-ture in the freezer compartment. This is because the compressor operation is too short in winter, and not enough cold air is provided tothe freezer compartment. And if the foods in the refrigerator compartment freeze, you must set the REFRIGERATOR TEMP. CONTROL toless colder setting. (toward "MIN").
• With the FREEZER TEMP. CONTROL set to "MAX" , there will be less cold air directed to the refrigerator compartment, and the refrigera-tor compartment may not become cold enough.
2. Reference value of temperature
The values tables above refer to the measurement carried out center area and 1/3 of overall height from the bottom at each of the refrigerator and thefreezer after the machine has been operated at an ambient temperature of 32 °C with no food s tored and the door closed until the temperature is sta-bilized.
The values vary depending upon frequency of opening and closing, the doors ambient temperature, amount of stored foods and manner of storingfoods.
KNOBSETTING
MAX
MID
MIN
PURPOSE
For making ice rapidly of fast freezing. And winter season.When restocking with fresh food.For normal freezing.For storing frozen food for a short period (up to one month).When frozen food or ice cream is not stored.
FREEZER TEMP.CONTROL
KNOBSETTING
MIN
MAX
(Center)
PURPOSE
For keeping freshness of food longer.When the refrigerator does not provide sufficient cooling.For normal operation.When the refrigerator provides excessive cooling.
When refrigerator temperature control sets to the "MAX", some foods storedmay become frozen. In this case adjust control set back to the center position.REFRIGERATOR
TEMP.CONTROL
SETTING OFFREEZER TEMP.CONTROL KNOB
Freezer temperature
MAX(Coldest)
MID
Approx. Approx. Approx.
The values shown above refer to the case where therefrigerator temp. control knob is set at "MID".
SETTING OFREFRIGERATOR TEMP.CONTROL KNOB
Refrigerator temperature
MAX(Coldest)
MIN
Approx. Approx. Approx.
The values shown above refer to the case where thefreezer temp. control knob is set at the center position.
(Center)MIN
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3. Temp. control system
Ambient temperature
Refrigerator compartment temperature (at the center position)
Freezer compartment temperature (at MID position)
0
Normal operation (ex. at 20 C ambient temperature)
ON Compressor & Fan
10
20
30
-20
-10
Time
OFF OFF ON
Temp.( C)
FREEZERCOMPARTMENT
FREEZERCOMPARTMENT
REFRIGERATORCOMPARTMENT
REFRIGERATORCOMPARTMENT
Evapo-rator
Cold air
Fan
Compressor
much cold air
less cold air
FREEZERCOMPARTMENT
REFRIGERATORCOMPARTMENT
low cold power
less cold air
regulating the quantityof cold air.
much cold air
regulating the quantityof cold air.
controlling the compressor & the fan running time
high cold power
controlling the compressor & the fan running time
Freezer Temp. Control KnobThe FREEZER TEMP. CONTROL regulates the quantity of cold air to the freezer.MAX setting directs more cold air to the freezer compartment.(making the freezer compartment colder)MIN setting directs less cold air to the freezer compartment.
(making the freezer compartment less colder)
Refrigerator Temp. Control KnobThe REFRIGERATOR TEMP. CONTROL controls thecompressor & the fan running time of the refrigerator system.MAX setting will result in colder temperature in the both(refrigerator and freezer) compartments.MIN control setting will result in warmer temperature in theboth (refrigerator and freezer) compartments.
Coldest Coldest
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8 – 1
SJD26LVSLCHAPTER 8. ASSEMBLING PROCEDURES OF MAIN PARTS AND CAUTIONSCAUTION: DISCONNECT THE UNIT FROM THE POWER SUPPLY BEFORE ANY REPAIRING.
[1] F-LOUVER ASS'Y (SJ-A20S/B21S/A24S/B25S/A28S/B27S)
1. Fan motor ass'y
1. Stick U-sealer handle to Fan motor holder b (Fig. A-2).
2. Insert the terminal of Lead EV-cover to Fan motor (Fig. A-3).
3. Insert shaft of Fan motor to the hole of motor cushion, set at Fan motor holder b.
Then insert the boss of rear to the hole of Motor cushion, fix with Tapping screw(1 piece).
4. Set Fan clamp to propeller fan 90 mm. and then insert it to the shaft of Fan motor( Fig. A-4).
Fan motor holder bU-sealer handle
U-sealer handle
Motor cushion
Lead EV-cover
Fan motor
Motor cushion
Fan motor holder a
Propeller fan 90
Fan clamp
Slit area
Figure A-1
Fan motor holder bU-sealer handle
U-sealer handleFan motor holder b
Lead EV-cover Fan motor
Fan clamp
Propeller fan 90
Detail of D
Propeller fan 90
Fan clamp
Fan motor
Motor cushion
Motor cushion
Fan motor holder b
Fan motor holder a
Note(1) Assemble so that terminal of Fan motor does not deform.(2) Take care not to stress to terminals of Fan motor after wiring.(3) Check locking by pulling them with more than 10N(1 kgf).
Note(1) Slit of each Fan Clamp and propeller fan 100 should not be at same
position.(2) Fan clamp should be inserted virtically to the end of boss.(3) Propeller fan should not be taken out from shaft when pulled by 2 kgf.
(127V : with yellow tape)
WIRE COLOR IS GRAY/ORANGE
GOOD NO GOOD
slit
Fan clampslit
SEC. A-A
Figure A-4
Figure A-2
Figure A-3
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8 – 2
2. EV-cover ass'y1. Bind Fuse ass'y with L-band c. Then wind glass cloth tape (W25 x L50mm ) to lead wire of Fuse ass'y (Figure A-5).
2. Stick EVC-sealer a to square hole of EV-cover.
3. Set Fan motor ass'y to EV-cover. Then Fix with 2 tapping screw(Figure A-6) .
4. Set Fuse ass'y to EV-cover then stick aluminum tape (W39 x L35mm) and EV-cover al to EV-cover.
5. Set Def-thermistor to EV-cover and fix to Fan motor holder b with aluminum tape (W39 x L50mm ).
6. Insert the terminal of Def-thermistor to terminal No.5/No.6 and then insert the Fuse ass'y to the terminals No.1/No.2. on the 6P connector of LeadEV-cover (Figure A-7).
7. After wiring at rear of EV-cover take out lead wire from square hole to front and fix with L-band c. Then stick EVC-sealer b to lead wire.
Fuse ass’y
L-band c
Glass cloth tapeW25xL50
Figure A-5
Note
Fan motor ass’y
Tapping screw
Def-thermistor
W25xL50Glass cloth tape
StickAl-tapefrom here
Aluminum tapeW39xL135
L-band c
SEC. D-D
SCALE 2:1
FUSE(BLACK) (BLUE)
(WHITE)
Fan motor ass’y
T
(BLACK) (BLUE)
(WHITE)
Pins should be inserted surely, and check by pulling it.
PL Process Note
Figure A-7
Figure A-6
FAN MOTOR DEF THERMISTOR
Lead wire of Fuse ass’y must not over EV-cover.
Lead EV-cover
Tapping screwL-band c
EVC-sealer a
EVC-sealer b
Fuse ass’y
Tapping screw
L-band c
EV-cover al
Stick EV-cover alfrom this line
(GRAY/ORANGE)
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8 – 3
3. F - louver ass'y1. Set F-louver to front side of EV-cover with double face tape (W15xL45mm.).
2. Insert F-control knob to F-louver. Then set to front side of EV-cover.
3. Stick EVC-sealer c to bottom of F-louver ass'y.
F-louver
F-control knob
EVC-sealer c F-louver
Fan motor holder a
Fan motor holder b
F-louver
F-control knob
Fan motor holder a
Fan motor holder b
EV-cover
NO CLEARANCE
Double face tapeW15xL45
.mm5.3nahter om.mm5.3nahter om
Figure A-8
Lead EV-cover
EV-cover
F-louver
F-control knob
arm B
F- louver arm A
F-control knob
F-louver
F-control knob
SEC. B-B SEC. C-C
Attachment specification of the F-control knob
arm B
The F-control knob is inserted into the ditch of the fan louver.
EV-cover
EV- cover
arm A
Figure A-9
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8 – 4
[2] F-LOUVER ASS'Y (SJ-A31S/A34S)
1. Fan motor ass'y
1. Stick U-sealer handle to Fan motor holder a (Fig. A-2).
2. Insert the terminal of Lead EV-cover to Fan motor (Fig. A-3).
3. Insert shaft of Fan motor to the hole of motor cushion, set at Fan motor holder a.
Next, insert the boss of rear to the hole of Motor cushion, set at fan motor b.
Then fix with Tapping screw (2 pieces).
4. Set Fan clamp to propeller fan 100 mm. and then insert it to the shaft of Fan motor( Fig. A-4).
Fan clamp
Propeller fan 100
Fan motor holder aU-sealer handle
Motor cushion Fan motor
Motor cushion
U-sealer handle
Fan motor holder bTapping screw
Tapping screw
Slit area
BROWN REDLead EV-cover
Figure A-1
Fan clamp
slit
slit
SEC. C-C
Fan motor holder a
U-sealer handle
Fan motor holder a
U-sealer handle
Fan motor
(1) Slit of each Fan Clamp and propeller fan 100 should not be at sameposition.
(2) Fan clamp should be inserted virtically to the end of boss.(3) Propeller fan should not be taken out from shaft when pulled by 2 kgf.
(1) Assemble so that terminal of Fan motor does not deform.(2) Take care not to stress to terminals of Fan motor after wiring.(3) Check locking by pulling them with more than 10N(1 kgf).
NoteNote
Figure A-4
Figure A-2
Figure A-3
Propeller fan 100
Detail of D
Fan motor holder a
Fan motor holder b
Motor cushion
Motor cushion
Fan clamp
Propeller fan 100
Fan motor
Fan clamp
NO GOODGOOD
WIRE COLOR IS GRAY/ORANGE(127V : with yellow tape)
Lead EV-cover
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8 – 5
2. EV-cover ass'y1. Bind Fuse ass'y with L-band c. Then wind glass cloth tape (W25 x L50mm ) to lead wire of Fuse ass'y (Figure A-5).
2. Stick EVC-sealer a to square hole of EV-cover.
3. Set Fan motor ass'y to EV-cover. Then Fix with 3 tapping screw(Figure A-6) .
4. Set Fuse ass'y to EV-cover then stick aluminum tape (W39 x L35mm) and EV-cover al to EV-cover.
5. Set Def-thermistor to EV-cover and fix to Fan motor holder b with aluminum tape (W39 x L50mm ).
6. Insert the terminal of Def-thermistor to terminal no.5/No.6 and then insert the Fuse ass'y to the terminals No.1/No.2. on the 6P connector of LeadEV-cover (Figure A-7).
7. After wiring at rear of EV-cover take out lead wire from square hole to front and fix with L-band c. Then stick EVC-sealer b to lead wire.
Fuse ass’y
L-band c
Glass cloth tapeW25xL50
Figure A-5
Note
SCALE 2:1
FUSE( BL AC K) (B LU E)
(WHITE)
( BL AC K) (B LU E)
(WHITE)
Pins should be inserted surely, and check by pulling it.
PL Process Note
Figure A-7
Figure A-6
FAN MOTOR DEF THERMISTOR
Lead wire of Fuse ass’y must not over EV-cover.
(GRAY/ORANGE)
EVC-sealer a
EVC-sealer b
Fuse ass’y
L-band c
Fan motor ass’y
Def-thermistor
Tapping screw
L-band c
W25xL50Glass cloth tape
StickAl-tapefromhere
Aluminum tapeW39xL135
L-band c
SEC. D-D
Aluminum tapeW39xL50
StickEV-cover alfrom thisline
Tapping screw
Lead EV-cover
Tapping screw
EV-cover al
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8 – 6
3. F - louver ass'y
1. Set F-louver to front side of EV-cover with double face tape (W15xL45mm.).
2. Insert F-control knob to F-louver. Then set to front side of EV-cover.
3. Stick EVC-sealer c to bottom of F-louver ass'y.
F-louver
F-control knob
EVC-sealer c F-louver
Fan motor holder a
Fan motor holder b
F-louver
F-control knob
Fan motor holder a
Fan motor holder b
EV-cover
NO CLEARANCE
Double face tapeW15xL45
.mm5.3nahter om.mm5.3nahter om
Figure A-8
Lead EV-cover
EV-cover
F-louver
F-control knob
arm B
F- louver arm A
F-control knob
F-louver
F-control knob
SEC. B-B SEC. C-C
Attachment specification of the F-control knob
arm B
The F-control knob is inserted into the ditch of the fan louver.
EV-cover
EV- cover
arm A
Figure A-9
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8 – 7
[3] R CONTROL COV. ASS'Y
1. Insert Lead R-Thermistor to Lead R-C Box.
2. Inset Lead R-C box to PWB L ass'y.
3. Assemble the PWB L ass’y with PWB holder A and then assemble the PWB holder A with PWB holder B.
4. Stick the R-control AL on PWB holder A/B ass’y.
Lamp
R-C Box cover
Control label
R-Control knob
Figure A-10
Lead R-Thermistor( White wire)Lead R-C Box
Lead R-C Box PWB holder B
PWB holder A
Lead sealer
Figure A-11
PWB holder A
R-control AL
PWB holder B
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8 – 8
5. Assemble Lamp with R-C Box cover then fix with 2 tapping screw.
6. Stick Knob sealer on R-C Box cover and then insert Knob joint to R-C Box cover.
7. Assemble the PWB ass'y with R-C Box cover. And place the R-Thermistor on the groove of R-C Box cover.
8. Insert Lead R-C Box to Lamp.
9. Insert R-Control knob to R-C Box cover.
10.Stick Control Label on R-C Box cover.
R-C Box cover
Knob sealer
R-C Box cover
Knob joint
Figure A-12
PWB holder
R-Thermistor
R-C Box cover
Lamp
Figure A-13
Control label
R-Control knob
Figure A-14
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8 – 9
[4] HOW TO REPLACE THE LAMP1. Remove the Light cover.
2. Remove the 2 screw, and pull the Lamp out.
3. Insert the new Lamp to the connector, and fix with 2 screws.
4. Set the Light cover.
Screw
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[5] DEFROST HEATER
1. Taking-out Evaporator 1. Take-out Fan louver ass’y.
2. Take-out E.V cover ass’y.
3. As shown in Figure A-15, pull the upper part of Evaporator toward
you, pull it diagonally so that the pipe of Evaporator does not con-tact the convex part of food liner.
4. Pull the Evaporator for remove as shown in Figure A-16.
NOTE: When pulling Evaporator and bending the pipes,pay attentionso as not to break and deform the pipes. Still, take care not tohurt yourself by fin of Evaporator.
2. Replacement of Def. heater.1. Remove the aluminium tape on Heater support to take it off from
the food liner.
2. Raise the protrusion part of Heater support. Then remove Heater cover.
3. Open Def.heater fixed part of Heater support al to the right and left,then remove Def.heater ass’y.
Evaporator
Food liner convex part
Figure A-15
Food liner convex part
Evaporator
Pipe
Figure A-16
Evaporator
Figure A-17
Heater cover
Protrusion parts
Protrusion part of Drain support al(2 pcs.)
Heater cover
Def. heater ass'y
Heater support
Figure A-18
Heater support
Fixed parts
Def.heater ass’y
Figure A-19
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8 – 11
4. Replace Def. heater ass’y with new one.
5. Bend end of heater support 90.
6. Assemble Defrost heater to Heater Support.
7. Assemble Heater cover to Heater Support. Bend top edge to out-side.
8. Roll the leading wire Sealer to Lead wire Defrost Heater.
3. Installing of Evaporator 1. Install Evaporator as shown in Figure.A-15 in the reverse order of
Figure.A-16.
2. Correct the deformed fin.
NOTE: 1.When installing Evaporator, take care not to deform signifi-cantly and break the pipes.
2.Take care not to damage the lead wires and hurt yourself by
the fin of Evaporator.3.You shouldn’t touch Defrost Heater with your bare hand.(you should were pure gloves)
4.You should wipe that with alcohol. When you touch Defrostheater with your bare hand.
Heater support
Def. heater ass'y
Heater cover
Figure A-20
Heater Support
BENDBEND
Figure A-21
4 P
Defrost Heater Heater support
Figure A-22
4 P
BENDBEND
Figure A-23
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9 – 1
SJ26NSL Service ManualCHAPTER 9. COOLING UNIT
[1] COOLING UNITNOTE: The iron pipe is partly used of this refrigerator. Please note the following points when brazing the iron pipe.
• Brazing material should be silver brazing rod. (To be equivalent with BAg-20 or BAg-7)
• Flux should be FB3A type. (It should be non-chlorine type).
• Place an iron plate or cloth on the base frame to prevent the flux fall.
• Remove the paint and plating on the pipe by the sandpaper before start repairing.
• If you cut the iron pipe for repairing, remove the plating on the iron pipe end (20mm) by the sandpaper.
• Put the flux on silver brazing rod and dry the flux by the flame of the torch, and then start brazing.
• Remove the flux completely by the wire brush , and wipe off by the cloth after brazing.
• Leakage inspection should be done when compressor is running.
• After removing flux, paint the black enamel paint on the brazing part.
* Copper back condenser is used in some models.Before repairing,check the Back condenser is copper or iron.
Hot pipe L(Side condenser)
Hot pipe(DP-condenser)
Hot pipe R(Side condenser)
Evaporator
Suction pipe
Compressor
Capillary tube
Dryer
Back condenser
S.P connector
Discharge P connector
Dryer connector
Mark: Brazing portionMark: Refrigerant flow
Iron pipe
Copper pipe
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[2] LOCATION
1. Location 1
2. Location 2
* Copper back condenser is used in some models.Before repairing,check the Back condenser is copper or iron.
Capillary tube Dryer
Charge pipe
Dryer connector
Charge pipe L
Suction pipe S.Pconnector
DischargeP connector
Evaporator
Compressor
Back condenser
Hot pipe
Mark shows Ag brazing points
Mark shows Cu brazing points
*
Charge pipeto Dryer
Dryer connector to Dryer
Hot pipeto Dryer connector
Pinch Point
Dryer to Capillary tube
Compressor's discharge pipe
Suction butyl
to Discharge P. connector Charge pipe Lto Compressor'sprocess tube
Back condenser to Hot pipe
D.P. butyl
Discharge P. connector to Back condenser
Pinch point
S.P connector to Compressor'ssuction tube S.P connector
to Suction pipe
Mark shows Ag brazing points
Mark shows Cu brazing points
*